CN106849263A - A kind of power supply unit, electric power system, method of supplying power to - Google Patents
- ️Tue Jun 13 2017
CN106849263A - A kind of power supply unit, electric power system, method of supplying power to - Google Patents
A kind of power supply unit, electric power system, method of supplying power to Download PDFInfo
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- CN106849263A CN106849263A CN201710179289.1A CN201710179289A CN106849263A CN 106849263 A CN106849263 A CN 106849263A CN 201710179289 A CN201710179289 A CN 201710179289A CN 106849263 A CN106849263 A CN 106849263A Authority
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007600 charging Methods 0.000 claims abstract description 73
- 238000004891 communication Methods 0.000 claims abstract description 59
- 230000001131 transforming effect Effects 0.000 claims abstract description 29
- 230000006870 function Effects 0.000 claims abstract description 9
- 230000004224 protection Effects 0.000 claims description 34
- 230000006855 networking Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 11
- 230000001174 ascending effect Effects 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 20
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- 238000010586 diagram Methods 0.000 description 8
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- 230000003993 interaction Effects 0.000 description 6
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- 238000005457 optimization Methods 0.000 description 4
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- 238000003912 environmental pollution Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
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- 238000004880 explosion Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
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- 241000208340 Araliaceae Species 0.000 description 1
- 102000040350 B family Human genes 0.000 description 1
- 108091072128 B family Proteins 0.000 description 1
- DWDGSKGGUZPXMQ-UHFFFAOYSA-N OPPO Chemical compound OPPO DWDGSKGGUZPXMQ-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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- 235000008434 ginseng Nutrition 0.000 description 1
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Classifications
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- H02J7/0077—
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- H02J7/0091—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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Abstract
The invention discloses a kind of power supply unit, USB interface including power input, controllable DC DC transforming circuits and with OTG functions, USB interface includes the control end and the voltage output end for exporting charging voltage of the control signal for receiving controllable DC DC transforming circuits；A kind of electric power system, including intelligent communications terminal, electrical equipment, described power supply unit are also disclosed；A kind of method of supplying power to is also provided.A kind of power supply unit in the present invention, realizes that control data is transmitted by the USB interface with OTG functions, and then controls controllable DC DC transforming circuits to change the charging voltage of output, realizes that charging voltage is controllable, compatibility of the enhancing power supply unit to electrical equipment；A kind of electric power system sends the control data of controllable DC DC transforming circuits by intelligent communications terminal, realizes that power supply unit compatibility is powered to various electrical equipments；A kind of method of supplying power to is factually now upgraded by the ascending series that intelligent communications terminal obtains power supply unit, and it is powered with matching electrical equipment.
Description
Technical field
The present invention relates to the field of powering, especially a kind of power supply unit, electric power system, method of supplying power to.
Background technology
Nowadays, electrical equipment is numerous, and electrical equipment needs supporting power supply unit to realize charging, and electrical equipment is logical with intelligence As a example by letter product, in intelligence communication product such as mobile phone update, 1 year modern society for changing, due to mobile phone and charger one As correspond, match and use, when changing mobile phone, the power supply unit of mobile phone be charger also with one piece of replacing of mobile phone, change The charger for getting off is just into rubbish, it is impossible to reuse, and causes the huge wasting of resources.And when using other mobile phone, Because charger is mismatched, cause not filling electricity, or charge very slow or be not fully filled electricity, the value that charger is recycled Just become very little.Some have made compatible charger for market, but it is to be solidificated in charger the inside, although can fill with Electricity, but due to being that compatible method is worked it out.Cannot coordinate mobile phone accomplish quickly, optimization charging.Also, it can only pin Compatibility is carried out to existing mobile phone, it is impossible to making any modification, it is impossible to make any renewal and optimization to it, also due to charger Itself voltage, temperature, the isoparametric change of service life, cause to recognize that IC differentiates that the probability of error increases, even with one section The result that appearance cannot be used after time.Other power supply units, such as portable power source and power supply adaptor, there is also above-mentioned Problem, therefore it provides a solution is very necessary.
The content of the invention
In order to solve the above-mentioned technical problem, external control signal can be received it is an object of the invention to provide one kind to realize charging Voltage is controllable, compatible strong power supply unit, correspondingly, also provides a kind of electric power system and method for supplying power to.
The technical solution adopted in the present invention is：A kind of power supply unit, including power input, controllable DC-DC become piezoelectricity Road and the USB interface with OTG functions, the USB interface include the control signal for receiving controllable DC-DC transforming circuits Control end and the voltage output end for exporting charging voltage, the input of the power input and controllable DC-DC transforming circuits End connection, the control end is connected with controllable DC-DC transforming circuits, and the output end of the controllable DC-DC transforming circuits is connected to Voltage output end.
Further, the controllable DC-DC transforming circuits include MCU, the first inductance, the first electric capacity, the first diode and First switch pipe；The power input is connected with the positive output end of first switch pipe, the control end of the first switch pipe with The output end connection of MCU；The negative output terminal of first switch pipe one end, the positive pole of the first diode respectively with the first inductance Connection, the negative pole ground connection of first diode, the other end of first inductance is connected with one end of the first electric capacity, and described the The other end ground connection of one electric capacity；The other end of first inductance passes through negative output terminal, positive output end and the USB of second switch pipe The voltage output end connection of interface, the control end of the second switch pipe is connected with the output end of MCU, the control of the USB interface End processed is connected with MCU.
Further, the controllable DC-DC transforming circuits also include the 3rd switching tube, the first voltage-regulator diode and the first electricity Resistance, the negative output terminal of the second switch pipe is connected with the input of MCU, and the control end of the 3rd switching tube is defeated with MCU Go out end connection, the negative output terminal ground connection of the 3rd switching tube, the positive output end of the 3rd switching tube and the pole of the first voltage stabilizing two The negative pole connection of pipe, the positive pole of first voltage-regulator diode is connected with the negative output terminal of second switch pipe, the first resistor One end input respectively with MCU, USB interface be connected, the other end ground connection of the first resistor, the one of first electric capacity End is connected with the input of MCU.
Further, the controllable DC-DC transforming circuits also include thermo-sensitive resistor, one end of the thermo-sensitive resistor and MCU Input connection, the thermo-sensitive resistor the other end ground connection.
Further, the first switch pipe is PMOS, and the second switch pipe and the 3rd switching tube are NMOS tube, institute The grid for stating PMOS and NMOS tube is the control end of switching tube, and the source electrode of the PMOS and NMOS tube is negative defeated for switching tube Go out end, the drain electrode of the PMOS and NMOS tube is the positive output end of switching tube.
Further, the power supply unit is the straight charger of mobile terminal, power supply adaptor or portable power source.
Another technical scheme of the present invention is：A kind of electric power system, including intelligent communications terminal, electrical equipment, Described power supply unit, the power input of the power supply unit is connected with power supply, the intelligent communications terminal, electrical equipment point It is not connected with the USB interface of power supply unit.
Further, the intelligent communications terminal includes mobile phone, notebook computer, iPAD or PDA.
Further, the electrical equipment includes intelligent communications terminal.
Further, the electric power system also includes Cloud Server, is powered during for storing the different electrical equipments of correspondence and set Standby upgrading data, the intelligent communications terminal is connected by network with Cloud Server.
Another technical scheme of the present invention is：A kind of method of supplying power to, is applied to described electric power system, including with Lower step：
S1, intelligent communications terminal obtain the facility information of electrical equipment and the version information of power supply unit；
S2, intelligent communications terminal are contrasted the version information of the facility information of electrical equipment and power supply unit, to judge to supply Whether electric equipment is supported to carry out quick charge to electrical equipment, if supporting, power supply unit carries out quick charge to electrical equipment, Otherwise, into step S3；
S3, intelligent communications terminal networking obtain the upgrading data of power supply unit and send it to power supply unit, to realize power supply Device upgrade, and then power supply unit carries out quick charge to electrical equipment.
Further, the upgrading data packet includes correspondence electrical equipment and fills agreement, charge parameter and Protection parameters soon.
Further, the power supply unit carries out quick charge to electrical equipment includes：
The power supply unit judges whether electrical equipment supports quick charge, if support, power supply unit according to fill soon agreement to Electric equipment carries out quick charge；Otherwise, power supply unit is commonly charged according to charge parameter to electrical equipment, and power supply sets Standby MCU obtains charging current, charging voltage and is adjusted with carrying out charging current, charging voltage in real time, and realizing charging accelerates.
The beneficial effects of the invention are as follows：A kind of power supply unit in the present invention, is realized by the USB interface with OTG functions Control data is transmitted, and then controls controllable DC-DC transforming circuits to change the charging voltage of output, realizes that charging voltage is controllable, is increased Compatibility of the strong power supply unit to electrical equipment, there is provided the practicality of power supply unit, power supply unit can repeat reasonably to use, Reduce environmental pollution；A kind of electric power system in the present invention, the control of controllable DC-DC transforming circuits is sent by intelligent communications terminal Data, realize that power supply unit compatibility is powered to various electrical equipments；In addition, a kind of method of supplying power to, in power supply unit and use When electric equipment is mismatched, the ascending series for obtaining power supply unit by intelligent communications terminal are factually now upgraded, to match electrical equipment It is powered, the compatibility of power supply unit is improved, the method for realization is simple and effective.
Brief description of the drawings
Specific embodiment of the invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structured flowchart of power supply unit in the present invention；
Fig. 2 is an a kind of specific embodiment circuit diagram of power supply unit in the present invention；
Fig. 3 is a kind of structured flowchart of electric power system in the present invention；
Fig. 4 is a kind of method flow diagram of method of supplying power in the present invention；
Fig. 5 is an a kind of specific embodiment schematic diagram of electric power system in the present invention；
Fig. 6 is an a kind of specific embodiment flow chart of method of supplying power in the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.
A kind of power supply unit, with reference to Fig. 1, Fig. 1 is a kind of structured flowchart of power supply unit in the present invention, including power input End, controllable DC-DC transforming circuits and the USB interface with OTG functions, USB interface include becoming piezoelectricity for receiving controllable DC-DC The control end of the control signal on road and the voltage output end for exporting charging voltage, power input and controllable DC-DC transformations The input connection of circuit, control end is connected with controllable DC-DC transforming circuits, the output end connection of controllable DC-DC transforming circuits To voltage output end.
A kind of power supply unit in the present invention, realizes that control data is transmitted, and then control by the USB interface with OTG functions The charging voltage that controllable DC-DC transforming circuits change output is made, realizes that charging voltage is controllable, enhancing power supply unit is to electrical equipment Compatibility, there is provided the practicality of power supply unit, power supply unit can repeat reasonably use, reduce environmental pollution.
Used as the further improvement of technical scheme, with reference to Fig. 2, Fig. 2 is an a kind of specific reality of power supply unit in the present invention A circuit diagram is applied, controllable DC-DC transforming circuits include MCU, the first inductance L1, the first electric capacity C1, the first diode D1 and first Switching tube；In the present embodiment, the IC1 in MCU such as Fig. 2 is realized using the single-chip microcomputer of STMF103FSSOP20 models, the first electricity Hold C1 to be realized using electrochemical capacitor, first switch pipe is PMOS, the Q1 in first switch pipe such as Fig. 2, the grid of PMOS It is the control end of switching tube, the source electrode of PMOS is the negative output terminal of switching tube, and the drain electrode of PMOS is the positive output of switching tube End.Power input POWER is connected with the positive output end of first switch pipe Q1, and the control end of first switch pipe Q1 is defeated with MCU Go out end connection；The negative output terminal of first switch pipe Q1 one end respectively with the first inductance L1, the positive pole of the first diode D1 are connected, The negative pole ground connection of the first diode D1, the other end of the first inductance is connected with one end of the first electric capacity, the other end of the first electric capacity Ground connection；The voltage output end of negative output terminal, positive output end and USB interface that the other end of the first inductance L1 passes through second switch pipe Connection, the control end of second switch pipe is connected with the output end of MCU, and the control end of USB interface is connected with MCU, and here, second opens The Q2 in pipe such as Fig. 2 is closed, Q2 is NMOS tube, and the grid of NMOS tube is the control end of switching tube, and the source electrode of NMOS tube is switching tube Negative output terminal, the drain electrode of NMOS tube is the positive output end of switching tube, and the voltage output end of USB interface is vdd terminal and GND ends, The positive output end of second switch pipe Q2 is connected with the vdd terminal of USB interface, the GND ends ground connection of USB interface；The control end of USB interface Including D- ends, D+ ends and ID ends, they are connected with MCU respectively.MCU is responsible for the system operation of whole power supply unit, voltage adjustment PMOS Q1, inductance L1, electric capacity C1, diode D1 is controlled to constitute a simple Bulk circuit by PWM（Can certainly make With BOOST, buck-boost circuits, Cuk circuits etc.）, reach the purpose of voltage x current adjustment.Therefore, power supply unit passes through The control end of USB interface receives control signal and sends control signals to MCU, and MCU controls first switch according to control signal The ON time of pipe controls the size of charging voltage, realizes compatible difference electrical equipment.
Used as the further improvement of technical scheme, with reference to Fig. 2, Fig. 2 is an a kind of specific reality of power supply unit in the present invention A circuit diagram is applied, controllable DC-DC transforming circuits also include the 3rd switching tube, the first voltage-regulator diode ZD1 and first resistor R1, this In embodiment, the 3rd switching tube is NMOS tube, and the Q3 in such as Fig. 2, the grid of NMOS tube is the control end of switching tube, NMOS tube Source electrode is the negative output terminal of switching tube, and the drain electrode of NMOS tube is the positive output end of switching tube；The negative output terminal of second switch pipe Q2 It is connected with the input of MCU, the control end of the 3rd switching tube Q3 is connected with the output end of MCU, the negative output of the 3rd switching tube Q3 End ground connection, the positive output end of the 3rd switching tube Q3 is connected with the negative pole of the first voltage-regulator diode ZD1, the first voltage-regulator diode ZD1 Positive pole be connected with the negative output terminal of second switch pipe Q2, one end of first resistor R1 input, USB interface respectively with MCU Connection, in the present embodiment, one end of first resistor R1 is connected with the GND ends of USB interface, the other end ground connection of first resistor R1, One end of first electric capacity C1 is connected with the input of MCU.Therefore, such as in figure, USB interface, the first voltage-regulator diode ZD1 and MCU C5, C6 pin connection, realize current measurement feedback；Secondly, connect by by the D6 pins of one end of the first electric capacity C1 and MCU Connect, realize that voltage measurement is fed back, then power supply unit can in real time measure charging voltage and charging current, realize feedback control, NMOS Pipe Q3 is mainly the output of protection power supply unit and the effect of protection electrical equipment.
Used as the further improvement of technical scheme, with reference to Fig. 2, Fig. 2 is an a kind of specific reality of power supply unit in the present invention A circuit diagram is applied, controllable DC-DC transforming circuits also include thermo-sensitive resistor R2, and one end of thermo-sensitive resistor R2 connects with the input of MCU Connect, the other end ground connection of thermo-sensitive resistor R2.The temperature survey of power supply unit can be realized by thermo-sensitive resistor R2, facilitate MCU according to The temperature that measurement is obtained carries out charge control.
Used as the further improvement of technical scheme, power supply unit is the straight charger of mobile terminal, power supply adaptor or shifting Dynamic power supply.
A kind of electric power system, with reference to Fig. 3, Fig. 3 is a kind of structured flowchart of electric power system in the present invention, including intelligence communication Terminal, electrical equipment, described power supply unit, the power input of power supply unit are connected with power supply, intelligent communications terminal, electricity consumption Equipment is connected with the USB interface of power supply unit respectively.
A kind of electric power system in the present invention, the control data of controllable DC-DC transforming circuits is sent by intelligent communications terminal, Realize that power supply unit compatibility is powered to various electrical equipments.Wherein, control data includes the upgrading data of power supply unit.Its In addition to the USB interface with OTG functions, other support that the intelligence of data double-way transmission is led to the USB interface of middle power supply unit The interface of terminal is believed, also within protection scope of the present invention.
Used as the further improvement of technical scheme, intelligent communications terminal is including mobile phone, notebook computer, iPAD or PDA etc. The intelligent artifact of connected network communication can be carried out.
Used as the further improvement of technical scheme, electrical equipment includes intelligent communications terminal.When electrical equipment for intelligence is logical During letter terminal, intelligent communications terminal sends control data and such as upgrades data, after helping power supply unit to realize upgrading compatibility, power supply Equipment can be powered to intelligent communications terminal.When electrical equipment is other non intelligent communication terminals, intelligent communications terminal side After helping power supply unit to realize that upgrading is compatible, power supply unit is powered to non intelligent communication terminal.
Used as the further improvement of technical scheme, electric power system also includes Cloud Server, for storing the different electricity consumptions of correspondence The upgrading data of power supply unit during equipment, intelligent communications terminal is connected by network with Cloud Server.
Usually, the upgrading data of power supply unit can be networked by intelligent communications terminal and be obtained, and can be that artificial search is obtained , it is also possible to it is connected with the Cloud Server on backstage by intelligent communications terminal and is acquired, Cloud Server is stored with corresponding different During electrical equipment, the upgrading data of power supply unit, it is ensured that the normal upgrading of power supply unit.
A kind of method of supplying power to, is applied to described electric power system, and with reference to Fig. 4, Fig. 4 is a kind of method of supplying power in the present invention Method flow diagram, comprises the following steps：
S1, intelligent communications terminal obtain the facility information of electrical equipment and the version information of power supply unit；
S2, intelligent communications terminal are contrasted the version information of the facility information of electrical equipment and power supply unit, to judge to supply Whether electric equipment is supported to carry out quick charge to electrical equipment, if supporting, power supply unit carries out quick charge to electrical equipment, Otherwise, into step S3；
S3, intelligent communications terminal networking obtain the upgrading data of power supply unit and send it to power supply unit, to realize power supply Device upgrade, and then power supply unit carries out quick charge to electrical equipment.
A kind of method of supplying power to, when power supply unit and electrical equipment are mismatched, i.e., power supply unit cannot enter to electrical equipment Row quick charge, usually, power supply unit is stored with the information of supported electrical equipment, including electrical equipment model, right Charge parameter, Protection parameters for answering etc., when electrical equipment does not need to be powered equipment inside supported electrical equipment, then Upgrading, otherwise, power supply unit can upgrade to electrical equipment.The present invention obtains the liter of power supply unit by intelligent communications terminal DBMS realizes upgrading, it is powered with matching electrical equipment, there is provided the compatibility of power supply unit, the method for realization is simple And effectively.
Used as the further improvement of technical scheme, upgrading data packet includes correspondence electrical equipment and fills agreement, charge parameter soon And Protection parameters.After power supply unit completes upgrading according to upgrading data, counted according to agreement, charge parameter and Protection parameters etc. are filled soon According to carrying out quick charge to electrical equipment.By taking mobile phone as an example, agreement is filled soon QC agreements, PE agreements and OPPO agreements.
Used as the further improvement of technical scheme, power supply unit carries out quick charge to electrical equipment to be included：
Power supply unit judges whether electrical equipment supports quick charge, if supporting, power supply unit is set to electricity consumption according to filling agreement soon It is standby to carry out quick charge；Otherwise, power supply unit is commonly charged according to charge parameter to electrical equipment, and power supply unit MCU obtains charging current, charging voltage and is adjusted with carrying out charging current, charging voltage in real time, and realizing charging accelerates.It is common to charge When, power supply unit increases power output by properly increasing charging voltage, improves charging rate.
For the electrical equipment for not supporting quick charge, for example, do not support to fill the mobile phone of agreement soon, power supply unit is to charge The MCU of device obtains charging current, charging voltage in real time, calculates charge power, steps up charging voltage, increases power output, Charging rate is improved, line is made up, the method for the loss that interfacial contact resistance brings keeps the PMU of mobile phone to charge most battery Good state, can so improve more than 5% charging rate.
Due to our usually used mains chargers, its power output is constant, and in order to cost-effective basic Only consider to be charged in off-mode.When open state charges due to its power output not enough, in order to ensure mobile phone Operation, only reduces the electric current charged to battery, inevitably increases the charging interval.So, want it is most fast charged, Only closing hand phone charges, to normally being made troubles using mobile phone, therefore, in the present invention, during long-term use, dynamic Adjust the charging voltage of output, it is ensured that in charging process, either make a phone call, still see a film, foot can be provided to mobile phone Enough electricity, it is ensured that output to the electric current on battery is constant, maximum, can so improve the speed of 20-50%.We lead to Cross the mode that real-time tracking adjusts power output, it is ensured that no matter mobile phone is under which kind of state, there are enough electric energy to provide, it is ensured that Charging current to battery is constant；The charging interval is reduced, extends the life-span of battery.
In practice, intelligent communications terminal needs to install corresponding control APP realizations with electrical equipment and the number of power supply unit According to interaction, and power supply unit is also required to write corresponding software and is operated control, and the software module of power supply unit mainly includes： Usb interface module, charge management module, charge parameter, updating and management module and output protection management module, wherein, USB interface Module is responsible for the switching of master slave mode, and during slave pattern, the communication between treatment and intelligent communications terminal, holotype is responsible for and electricity consumption The charge mode matching of equipment, such as rush the communication of agreement, matching of QCR agreements etc. soon；Charge management module is mainly responsible for The signal of communication sent according to intelligent communications terminal when charging when rushing soon, according to voltage, electric current that order request output is specified； When such as QC agreements charge, when not set up without communication, the voltage of 5V is exported；After the success of QC protocol communications, output electricity Pressure rises to 9V, or 12V；During normal charging mode, while the voltage that output is specified, output voltage is improved, be less than In the range of safe voltage, the power of maximum is exported to electrical equipment, accelerate charging rate, reduce the charging interval；Charge parameter, Updating and management module is responsible for Protection parameters, charge parameter and software version information, the updating and management of electrical equipment；Most Afterwards, output protection management module is responsible for charge protection of the electrical equipment when charging.
As a example by using mobile phone as electrical equipment and intelligent communications terminal, the charge protection machine of the i.e. charger of power supply unit is illustrated System：Communication interaction confirms mobile phone, the respective voltage of charger, operating current, protective current, the working range and ginseng of abnormal current Number, it is ensured that the safe range of each equipment work, it is to avoid the damage of voltage, electric current beyond equipment caused by safe range occur. Mobile phone is charged when using 5v such as, the maximum charging current of the mobile phone of the model that we test is 1.5A, works as mobile phone When internal wiring is problematic, when causing charging current to rise to 2A, our common common chargers due to there was only short-circuit protection, Without these trickle changes are detected, power supply is may proceed to, cause mobile phone to damage.And the charger in the present invention can be according to these guarantors Shield parameter, intelligent protects to mobile phone.When electric current is monitored beyond designated value, the request with mobile communication can be initiated. Linked up by the control APP with mobile phone, confirmed use electricity, charge capacity, the output electricity of charger, the temperature of mobile phone Judge whether mobile phone has internal short-circuit etc. parameter, be inferred to whether have possibility on fire from explosion, and then close output, open mobile phone Alarm, alarm user.
Specifically, power supply unit has following eight grades of protections（By taking mobile phone as an example, power supply unit is electrical equipment with charger Example）：
1st grade of protection：The fully interaction of mobile phone and charger protocol parameter is linked up, it is ensured that the electric current of charger output, voltage meets It is required that.
2nd grade of protection：Short-circuit protection.During outside abnormal appearance short circuit, charger can be within the extremely short time（Than commonly filling Electrical equipment reaction is fast 3 times）This problem is detected, output is quickly closed, mobile phone is protected.
3rd level is protected：Interior of mobile phone charging circuit abnormal protection, electric current is occurred when interior of mobile phone charging circuit is abnormal Change, protect mobile phone by monitoring the change of this electric current, it is to avoid further damage mobile phone.
4th grade of protection：Interior of mobile phone battery problems abnormal protection.When slight damage occurs in battery, or when abnormal, Can all occur in charging process with the different current curve of normal battery, by charger and the further parameter ratio of mobile phone It is right（Use electricity, charge capacity, output electricity, the temperature of charger etc.）, confirm whether mobile phone has possibility on fire from explosion, and When remind user, it is to avoid there is personal safety accident.
5th grade of protection：Circuit, contact mouth protection.Mobile phone in use, because charging wire fractures, lead by joint looseness Loose contact is caused, it is also in fact a kind of to mobile phone that this frequently charges, and is a kind of damage to battery of mobile phone, and we can be by electricity Stream, the change of voltage detect this problem, when electric current and voltage occur fluctuation and is mutated, remind user to change in time and charge Line or maintenance mobile phone, it is to avoid problem expands.
6th grade of protection：Temperature protection.When our common mobile phones charge, when the temperature of mobile phone is too high, charger can't Output is closed, is still powered to mobile phone, thus there is potential safety hazard, it is possible to which continuing power supply can cause mobile phone to occur generating heat Fire.We, when temperature is more than predetermined value, cut off voltage output, to protect hand by the temperature at thermo-sensitive resistor monitoring cell-phone end Machine.
7th grade of protection：Full of electric protection.After mobile phone is full of, charger can close output, it is to avoid be filled to mobile phone for a long time The hidden danger that electricity brings.
8th grade of protection:Non- mobile phone kind equipment current limliting, short-circuit charge protection.Present equipment in need can be by USB pairs It charges, but because common mobile phone charging short circuit current point all sets higher, cannot really starting protection effect.This Charger is recognized during for non-cell phone apparatus, adjust automatically short circuit current parameter, the charging safety of protection equipment.
Below with intelligent communications terminal as mobile phone, power supply unit as charger, electrical equipment for intelligent communications terminal be hand As a example by machine, method of supplying power to of the invention is illustrated：
With reference to Fig. 5, Fig. 5 is an a kind of specific embodiment schematic diagram of electric power system in the present invention, and charger for mobile phone is by there is OTG The charging wire of interface is connected to mobile phone, and mobile phone carries out communication interaction and charging.Mobile phone charges to be connected by USB and charger , either there are OTG functions on the interface of the micro standards of USB 2.0 or the Type c of USB 3.1.
With reference to Fig. 6, Fig. 6 is an a kind of specific embodiment flow chart of method of supplying power in the present invention, and mobile phone is connected to charging After device, charger judges whether mobile phone inserts, if insertion, opens the D+ ends of USB interface of charger, io mouthfuls of D- ends and beats Open, the ID pin of OTG lines are set low, start OTG, allow mobile phone to be in host states, at this moment mobile phone starts the equipment for reading charger Information, including charger version information, and the information of mobile phone that charger is supported, information includes mobile phone model, correspondence Fill agreement, charge parameter and Protection parameters soon.The APP pre-installed on mobile phone is receiving the device id of charger, after version information, Charger is shaken hands version information interaction, and the version with mobile phone A PP compares, if it find that the software version of current charger is needed Upgrade to support during fast charge mode, i.e., the electrical equipment list in mobile phone model and charger that APP reads in mobile phone During mismatch, then upgrade request is write to charger, while mobile phone terminal points out upgrading after mobile phone electricity is confirmed, mobile phone APP will connect network, and whether download has feasible adaptation parameter, if then downloading corresponding program i.e. script by network, Herein, if cannot download to corresponding program on network, mobile phone A PP can be connected with the server on backstage, search whether phase The program answered.Whether charger receives the script of mobile phone-downloaded by USB interface, and correct with mobile phone inspection data, and data are complete The good correct code then updated on charger, completes adaptation, restarts charger, then starts the charging modes for optimizing to mobile phone Charge.It should be noted that except the script that downloads, corresponding charge parameter and Protection parameters can also be obtained in the lump.
If need not upgrade, charger release ID pin allow mobile phone to exit into charge mode, close OTG, are switched to Agreement is filled in optimal charge mode, support soon, and quick charge is carried out using the agreement of filling soon of charger memory storage, and otherwise basis is deposited The charge parameter of storage is charged, and obtains charging voltage in real time, is properly increased charging voltage and is realized acceleration of charging.If charging Complete, then the communication between complete charge device and mobile phone.
Filling agreement soon has many kinds, and updates quickly, and incompatible each other.Namely the charger of A family fills not The mobile phone of B family is common occurrence.But hardware interface is substantially that 4 lines（V+ V- D+ D-）, we are according to mobile phone Model, downloads corresponding Telescript, has come that correspondence is existing in this way, newly go out it is various fill agreement soon, reaching resource can Repetition is reasonably used, and reduces environmental pollution.Charger is interacted according to Telescript and mobile communication, and control charger output refers to Fixed voltage, electric current is charged the phone, and completes the quick charge to mobile phone.Such as QC rushes agreement in the request for having 9V to export soon When, change the 5V outputs of charger to 9V, realize quick charge.
Linked up by USB interface by charger and mobile phone, mobile phone is again and network communication, correct by Network Capture Configuration parameter after, then the charge parameter of adaptation is handed down to by the USB charge ports of mobile phone by charger.Most suitable charging Scheme is given to charger, and then charger charges by the charging modes for optimizing to mobile phone or flat board.Such as QC3.0, PE, PD Charge etc., for another example following QCx.0 etc..And the characteristic of the battery according to mobile phone, the characteristic optimizing of charger is optimal Charging effect and protection.Multiple mobile phone is realized, a charger can just settle charging, once put into, use for many years, energy-conservation Emission reduction.Not brand, the mobile phone of different model, its charging modes are varied, by charger of the invention and mobile phone interaction Mode, is upgraded, it is ensured that any mobile phone be able to can be charged with a charger by charger.Avoid the multiple chargings of purchase The possibility of device, has saved the consumption of resource.Accomplish that energy-saving is arranged.And its cells electricity, charger are monitored by mobile phone A PP Output electricity, the control of the PMU of mobile phone can analyze an output voltage for mobile phone optimization, then by this voltage Mobile phone is charged, man-to-man optimization charging effect reaches the reduction charging interval, extends battery life.
Similarly, the power supply process of the intelligent communications terminal such as notebook computer, IPAD is identical with mobile phone, repeats no more；And There is no the electrical equipment of communication capacity for other, we, as intermediary, obtain corresponding ascending series by intelligent communications terminal After, power supply unit is to be capable of achieving to be powered electrical equipment.
A kind of method of supplying power to of the present invention, when power supply unit and electrical equipment are mismatched, is obtained by intelligent communications terminal The ascending series of power supply unit are factually now upgraded, and it is powered with matching electrical equipment, improve the compatibility of power supply unit, real Existing method is simple and effective.
Above is preferable implementation of the invention is illustrated, but the invention is not limited to the implementation Example, those of ordinary skill in the art can also make a variety of equivalent variations or replace on the premise of without prejudice to spirit of the invention Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (13)
1. a kind of power supply unit, it is characterised in that including power input, controllable DC-DC transforming circuits and with OTG functions USB interface, the USB interface includes the control end of the control signal for receiving controllable DC-DC transforming circuits and for exporting The voltage output end of charging voltage, the power input is connected with the input of controllable DC-DC transforming circuits, the control end It is connected with controllable DC-DC transforming circuits, the output end of the controllable DC-DC transforming circuits is connected to voltage output end.
2. power supply unit according to claim 1, it is characterised in that the controllable DC-DC transforming circuits include MCU, the One inductance, the first electric capacity, the first diode and first switch pipe；The power input connects with the positive output end of first switch pipe Connect, the control end of the first switch pipe is connected with the output end of MCU；The negative output terminal of the first switch pipe is respectively with first One end of inductance, the positive pole connection of the first diode, the negative pole ground connection of first diode, the other end of first inductance One end with the first electric capacity is connected, the other end ground connection of first electric capacity；The other end of first inductance is opened by second Close the voltage output end connection of the negative output terminal, positive output end and USB interface of pipe, the control end and MCU of the second switch pipe Output end connection, the control end of the USB interface is connected with MCU.
3. power supply unit according to claim 2, it is characterised in that the controllable DC-DC transforming circuits also include the 3rd Switching tube, the first voltage-regulator diode and first resistor, the negative output terminal of the second switch pipe are connected with the input of MCU, institute The control end for stating the 3rd switching tube is connected with the output end of MCU, the negative output terminal ground connection of the 3rd switching tube, and the described 3rd opens The positive output end for closing pipe is connected with the negative pole of the first voltage-regulator diode, positive pole and the second switch pipe of first voltage-regulator diode Negative output terminal connection, one end of first resistor input respectively with MCU, USB interface be connected, the first resistor The other end is grounded, and one end of first electric capacity is connected with the input of MCU.
4. power supply unit according to claim 2, it is characterised in that the controllable DC-DC transforming circuits also include temperature sensitive Resistance, one end of the thermo-sensitive resistor is connected with the input of MCU, the other end ground connection of the thermo-sensitive resistor.
5. power supply unit according to claim 3, it is characterised in that the first switch pipe is PMOS, described second Switching tube and the 3rd switching tube are NMOS tube, and the grid of the PMOS and NMOS tube is the control end of switching tube, the PMOS The source electrode of pipe and NMOS tube is the negative output terminal of switching tube, and the drain electrode of the PMOS and NMOS tube is the positive output of switching tube End.
6. the power supply unit according to any one of claim 1 to 5, it is characterised in that the power supply unit is mobile terminal Straight charger, power supply adaptor or portable power source.
7. a kind of electric power system, it is characterised in that including intelligent communications terminal, electrical equipment, any one of claim 1 to 6 institute The power supply unit stated, the power input of the power supply unit is connected with power supply, the intelligent communications terminal, electrical equipment difference It is connected with the USB interface of power supply unit.
8. electric power system according to claim 7, it is characterised in that the intelligent communications terminal includes mobile phone, notebook Computer, iPAD or PDA.
9. the electric power system according to claim 7 or 8, it is characterised in that the electrical equipment includes intelligent communications terminal.
10. electric power system according to claim 9, it is characterised in that the electric power system also includes Cloud Server, is used for The upgrading data of power supply unit during storage correspondence different electrical equipments, the intelligent communications terminal is connected by network with Cloud Server Connect.
A kind of 11. method of supplying power to, are applied to the electric power system described in any one of claim 7 to 10, it is characterised in that including with Lower step：
S1, intelligent communications terminal obtain the facility information of electrical equipment and the version information of power supply unit；
S2, intelligent communications terminal are contrasted the version information of the facility information of electrical equipment and power supply unit, to judge to supply Whether electric equipment is supported to carry out quick charge to electrical equipment, if supporting, power supply unit carries out quick charge to electrical equipment, Otherwise, into step S3；
S3, intelligent communications terminal networking obtain the upgrading data of power supply unit and send it to power supply unit, to realize power supply Device upgrade, and then power supply unit carries out quick charge to electrical equipment.
12. method of supplying power to according to claim 11, it is characterised in that the upgrading data packet includes correspondence electrical equipment Agreement, charge parameter and Protection parameters are filled soon.
13. method of supplying power to according to claim 12, it is characterised in that the power supply unit is carried out quickly to electrical equipment Charging includes：
The power supply unit judges whether electrical equipment supports quick charge, if support, power supply unit according to fill soon agreement to Electric equipment carries out quick charge；Otherwise, power supply unit is commonly charged according to charge parameter to electrical equipment, and power supply sets Standby MCU obtains charging current, charging voltage and is adjusted with carrying out charging current, charging voltage in real time, and realizing charging accelerates.
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